Google Now apps that like Siri application for IOS plans are only available for Android version 4.1 or Android known as Jelly Bean. But one of the developer in the XDA-Developers forum successfully install the Google Android Now for the 4.0 or Android Ice Cream Sandwich.
Google Now applications were introduced in the event Google I / O 2012 is a virtual personal assistant application that is able to provide answers to all questions asked by users and commands as the user is ‘talk’ with your phone / Android tablet.
As the Siri application for the Apple iPad / iPhone, Google Now application requires an internet connection to be enabled. Google claims this feature supports 18 languages.
If your users Android 4.0 or Android Ice Cream Sandwich, and want to try the free Google Now, you can download Google Now APK file and the guidelines on how to install it you can found it on this forum.